If reports are to be believed, popular actress Tamannaah is all set to make her debut in Malayalam. Reports suggest that she would be doing an important role in the upcoming Malayalam film Kammara Sambhavam. The film, which would have Dileep and Tamil actor Siddharth in the lead roles, would be directed by Rathish Ambat. Kammara Sambhavam has its script written by actor-writer Murali Gopy.